201210222121011 has 12 divisors (see below), whose sum is σ = 307733280891192. Its totient is φ = 126249551134656.

The previous prime is 201210222120997. The next prime is 201210222121043. The reversal of 201210222121011 is 110121222012102.

201210222121011 is a `hidden beast` number, since 20 + 1 + 210 + 2 + 221 + 210 + 1 + 1 = 666.

It is not a de Polignac number, because 201210222121011 - 2⁵ = 201210222120979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201210222121091) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 657549745341 + ... + 657549745646.

It is an arithmetic number, because the mean of its divisors is an integer number (25644440074266).

Almost surely, 2^{201210222121011} is an apocalyptic number.

201210222121011 is a deficient number, since it is larger than the sum of its proper divisors (106523058770181).

201210222121011 is a wasteful number, since it uses less digits than its factorization.

201210222121011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315099491010 (or 1315099491007 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 201210222121011 its reverse (110121222012102), we get a palindrome (311331444133113).

The spelling of 201210222121011 in words is "two hundred one trillion, two hundred ten billion, two hundred twenty-two million, one hundred twenty-one thousand, eleven".